熱硬化HRIコーティングが特殊ガラス上でRI > 1.8、鉛筆硬度8Hを達成
特殊ガラスメーカー
主要指標
01
課題
The glass manufacturer needed a high refractive index coating on display glass (0.7 mm) that could achieve RI 1.85 with maximum hardness. Existing HRI coatings from other suppliers could not reach 8H pencil hardness at these RI levels, and lower cure temperatures were desired to reduce energy costs.
02
アプローチ
Kriya developed three thermal-curable HRI formulation variants (V1, V2, V3), testing cure temperatures from 130°C to 200°C. Formulation optimisation focused on reducing haze through organic compound reduction (V2, V3) while maintaining RI and hardness targets. Low-outgassing variants were developed in response to customer requirements.
03
成果
V1 achieved RI 1.85 and 8H pencil hardness across all cure temperatures (130–200°C). V2 delivered the lowest haze: 0.49% at 200°C cure. All variants achieved 100% adhesion (ASTM D3359). Higher cure temperatures reduced haze significantly, with the majority of improvement occurring at 160°C.
Kriyaの強み
Kriya’s sol-gel chemistry uniquely enables 8H pencil hardness at RI 1.85 via thermal cure alone, with tuneable cure temperatures and low-outgassing options that competitors cannot match.
主要指標
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